CVE-2021-38681

Name: CVE-2021-38681
Creator: NVD / NIST
Published: 2021-11-20T01:15:08.303+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2021-38681 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A reflected cross-site scripting (XSS) vulnerability has been reported to affect QNAP NAS running Ragic Cloud DB. If exploited, this vulnerability allows remote attackers to inject malicious code. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

A reflected cross-site scripting (XSS) vulnerability has been reported to affect QNAP NAS running Ragic Cloud DB. If exploited, this vulnerability allows remote attackers to inject malicious code. QNAP have already disabled and removed Ragic Cloud DB from the QNAP App Center, pending a security patch from Ragic.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS Probability

0.70%

48.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Qnap	Ragic Cloud Db	<= 3.7.0.1

References

https://www.qnap.com/en/security-advisory/qsa-21-48Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-21-48Vendor Advisory

Timeline

Published: Nov 20, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-38681?

How severe is CVE-2021-38681?

CVE-2021-38681 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2021-38681?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-38681?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST